SHANGHAI, April 30 (Reuters) - China Vanke's first public commercial real estate investment products fell as much as 3% in early trade on their Tuesday debut, reflecting caution towards China's second-largest developer in the midst of a prolonged property market downturn.

The CICC-SCPG Consumption Infrastructure real estate investment trust (REIT) listed in Shenzhen is backed by shopping centres owned by SCPG Holdings, the commercial property platform of Vanke. (Reporting by Shanghai Newsroom; Editing by Christopher Cushing)